Generation of helical Ince-Gaussian beams: beam-shaping with a liquid crystal display

Jeffrey A. Davis; Joel B. Bentley; Miguel A. Bandres; Julio C. Gutiérrez-Vega

doi:10.1117/12.679533

9 September 2006 Generation of helical Ince-Gaussian beams: beam-shaping with a liquid crystal display

Jeffrey A. Davis, Joel B. Bentley, Miguel A. Bandres, Julio C. Gutiérrez-Vega

Proceedings Volume 6290, Laser Beam Shaping VII; 62900R (2006) https://doi.org/10.1117/12.679533
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

We review the three types of laser beams - Hermite-Gaussian (HG), Laguerre-Gaussian (LG) and the newly discovered Ince-Gaussian (IG) beams. We discuss the helical forms of the LG and IG beams that consist of linear combinations of the even and odd solutions and form a number of vortices that are useful for optical trapping applications. We discuss how to generate these beams by encoding the desired amplitude and phase onto a single parallel-aligned liquid crystal display (LCD). We introduce a novel interference technique where we generate both the object and reference beams using a single LCD and show the vortex interference patterns.

Citation Download Citation

Jeffrey A. Davis, Joel B. Bentley, Miguel A. Bandres, and Julio C. Gutiérrez-Vega "Generation of helical Ince-Gaussian beams: beam-shaping with a liquid crystal display", Proc. SPIE 6290, Laser Beam Shaping VII, 62900R (9 September 2006); https://doi.org/10.1117/12.679533

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